The Gummi-Routes in Kingdom Hearts 2 are greatly improved in comparison with the first game. This is partly due to the addition of bosses. If you're having trouble killing these bosses, read on.

Steps

There are several different kinds of bosses so we'll split them up into different sections.

Method1

Chimera

These six armed Monoliths are the most common boss that appears. Here's a few tips to help you kill it.

1

Chimeras can only be killed once all of their arms have been destroyed. To speed things up, use multiple Laser-Gummis. These will simultaneously destroy all of the legs, giving you an open shot at the body.

2

Once you've taken down the legs, there should be a pause when it begins to spasm. It will then unleash a barrage of lasers too terrifying for words. Ignore them. This sounds stupid, but they don't actually deal much damage. Concentrate your fire on the body, even as it moves around behind the wall of fire. Your lasers should lock onto it, and you'll be able to track it regardless.

3

After a fair amount of time, they will begin launching full scale missiles at you, which will knock you around the screen, leaving you with no chance to shoot back. As soon as you see this attack coming, begin Barrel-Rolling with Circle. This will keep you on top, giving you an extra moment to fire back.

Method2

Drillers

These things are pesky, and tend to deal damage quite a bit.

1

These guys have no ranged weapons, so impact Gummis are key. With impact Gummis they will take damage each time they hit you. Equip some Gungnir-Gs for an easy kill.

2

As much as they fly around for no reason, aiming is no priority. They will cross your line of fire regularly anyway. Besides, if you've got Auto-Lock Lasers they will seek it out automatically.

Method3

Joy Riders

These things are painful at any time of day, so make sure you know how to kill them.

1

Joy Riders have one weak spot. Their head. Who knows why, but it exposes this as it attacks. Generally it will approach from behind you. Keep your Gummi-Ship low on the screen, so you can note where the head pops up. It generally appears accompanied by a burst of flame, so as soon as you see that, begin aiming. A fast Gummi-Ship is your only hope of reaching the head before it hits you.

2

Because Joy Riders use physical attacks, Impact-Gummis are key. Unless you damage it, it will just keep coming back.

Method4

Hunters

These four armed menaces are some of the most pesky in the game. Never fear however.

1

Whatever you do, don't get fooled by the Teeny-Hunters. These are not necessary for a kill. Above all aim for the center. That's where its head is, and that's where it will take the most damage from.

2

When a Hunter lays out its punishing beam of fire, duck down. The beam tends to cross the screen horizontally.

3

Like the Chimera, it has full scale missiles. See the Chimera section for tips on this.

4

It will grab you and spin as fast as it can. This deals small damage over a long time, leading to no Medal-Points and a great deal of magic. You can escape using the Circle Roll. This has the added bonus of throwing it off balance, so you can get in and deal more damage.

Method5

Final Hunter

This is the absolute final, hardest boss. You meet it at the end of Rank Three Assault of the Dreadnought. You'll need to prepare for this one. Equip the following abilities:

2x Auto-Regen

1x Auto-Life

1x Cost Converter

Any heal upgrades or weapon bonuses you wish to equip.

Equip the following Gummis:

Drain-Laser

Large Helm

A lot of engines

Add as many straight forward cannon Gummis as as possible.

Now for the method of killing it.

1

Set your rapid fire to Semi-Auto. This will let Drain do its thing.

2

When it begins firing loads of mini-Lasers, quickly roll to any corner of the screen, and move clockwise until you are at the middle of one of the sides. It will start in a plus formation to an X formation, and then will change back.

3

Ignore the Teeny-Hunters and the arms, just aim straight for the head.